Low-Carbon Economic Dispatch of Park-Level Integrated Energy System Considering Carbon Trading and Flexible Response of Supply Side

To reduce the carbon emissions of park-level integrated energy system (PIES) and achieve the low-carbon economic operation of PIES, a low-carbon economic dispatch strategy for PIES that considers ladder-type carbon trading mechanism and flexible response of supply side is proposed. Firstly, carbon trading model is introduced in PIES to preliminarily constrain carbon emissions. Secondly, Kalina cycle that can use waste heat to generate electricity is introduced, and combine it with gas turbine (GT) and waste heat boiler (WHB) to construct the combined heat and power (CHP) unit to achieve flexible response on the supply side. Then, carbon trading and flexible response on supply side are jointly optimized to establish a low-carbon economic dispatch model of PIES. Finally, the superiority of proposed model in improving system economy, low carbon, and exergy efficiency is verified by multiple scenarios.